organicchemist25 - 25-10-2017 at 12:18
I was wondering if any one had recommendations on a vacuum pump for reduced pressure distillations? I have a Chemglass that seems to have went out on
me. It's ok now for strong vacuum filtrations, but overheats and shuts off on reduced pressure distillations. After about 15-20 minutes it gets
smoking hot. Then shuts down from thermal overload. It has happened twice, but works again upon cooling. So, I am just retiring it to filtrations.
So, I'm in the market for a new vacuum that pulls nicely. I would like it to be PTFE components. That's what the Chemglass is. Also, that can fill for
long periods of time. Hours, perhaps. I've never used aspirators except way back in lab classes.
Please share some vacuums you would recommend for average reduced pressure distillations. 10-20 torr is fine with me.
